Ten thousand people have now run our life-expectancy calculator, 15,000 runs total. The aggregate results:
- Baseline from age and gender alone: 83 years. Where their current habits point: 97. Fully optimized: 101.
- So the median respondent has already banked ~14 years through habits, with only ~3.6 left to claim. Most of the available gain is behind them, not ahead.
- Walking is the single biggest untapped lever by a wide margin, ahead of aerobic exercise and strength training. Only 13% are hitting the step target.
- Untapped potential runs ~5 years for the under-40s and ~3 for everyone over 40. Share of potential already captured peaks in the 50s, then slides.
- The drop after 80 is almost entirely exercise falling away. After 90, daily steps collapse from 8,000 to 2,000.
- Diet gaps cluster in the same places: nuts/olive oil, fish, legumes, whole grains. Red meat, processed meat and sugary drinks are already largely avoided.
- Demographics: 62% female, median age 57. Self-selected and older than the general population, so read the absolute lifespan numbers with that in mind.
Full breakdown with the age-group charts and a profile of the archetypal respondent:
https://www.unaging....age-calculator/
